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Finding the Fourth Proportional to 68,871.25, 95,042.33 and 39,063.25

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Solution

The fourth proportional to 68,871.25, 95,042.33 and 39,063.25 is: 53,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,871.25 : 95,042.33 = 39,063.25 : x
  2. Step 2: Convert to fraction form
    68,871.25/95,042.33 = 39,063.25/x
  3. Step 3: Cross multiply
    68,871.25x = 95,042.33 × 39,063.25
  4. Step 4: Simplify right side
    68,871.25x = 3,712,662,297.37
  5. Step 5: Solve for x
    x = 3,712,662,297.37/68,871.25
  6. Step 6: Final answer
    x = 53,907.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.